I have a 03 wr450, after my latest race while cleaning bike in shed I looked on the floor and found my decompression plug. I purchased a replacement plug from TT, looks like it will work fine. Anyway while I was at my local dealer I found what looked like a service bulletin about these plugs blowing out. Is there any truth that it may be related to excessive crankcase pressure. I checked my breather tubes they looked fine, I have a T bypass installed both lines are clear. I'm hoping that installing the TT plug will end this issue. I sure an glad it did not blow out on the track, I race Hare Scrambles and I probably would not have noticed the oil leak until after the race.